When comparing the common emitter and the common collector amplifiers, ()
A. the input impedance of the common collector is much larger and the output impedance of the common collector is much smaller.
B. the input impedance of the common collector is much larger and the output impedance of the common emitter is much smaller.
C. the input impedance of the common emitter is much larger and the output impedance of the common collector is much smaller.
D. the input impedance of the common emitter is much larger and the output impedance of the common emitter is much smaller.
The ripple factor of a sinusoidal signal having peak ripple of 2 V on an average of 50 V is ( ).
A. 0.028
B. 0.28
C. 0.04
D. 0.4
The gain of an amplifier changes from a value of -1000 by 10%. If the amplifier is used in a feedback circuit having F=-1/20, the gain change is about ().
A. 20%
B. 0.2%
C. 1%
D. 0.1%
The unit of measure for FET transconductance () is ().
A. ohms per volt
B. volts per ampere
C. Siemens
D. unitless